Confidently scale your Grok deployment with Transcend Rails

Coding agents do their best work when they can reach the systems engineering depends on: repositories, CI/CD, ticketing and internal tools. That same access is what makes a mistake expensive.

As a result, most teams end up choosing between an agent that can't touch anything important and an agent running on a developer's credentials with a prompt that says "be careful." Neither gets agents into production.

In Transcend’s 2026 Customer Data Readiness Report, 81 percent of enterprise IT leaders said they had delayed, scaled back or abandoned at least one AI initiative in the past year, and 93 percent of them pointed to data permission or governance issues. Transcend Rails gives teams another option, and as a SpaceXAI Partner Network Marketplace Partner, we built the Transcend Rails Agent Controls plugin for Grok Build so that option is one install away.

With the Transcend Rails Agent Controls plugin, every Grok agent gets a policy check before it acts

Your teams write the policies for what an agent can do. Business users write them in plain language, and engineers write them in code. Transcend Rails enforces those policies at runtime and records every decision.

For CIOs and CISOs, that changes the conversation about coding agents. Instead of debating whether they’re ready to trust an agent with production access, they focus on deciding what the agent is allowed to do there, and they can prove the rules were followed. The more you can enforce, the more you can safely let an agent do without a human on every step.

Get the plugin in the Cursor Marketplace

Free to download

Access isn't the same as permission

Some teams believe that giving an agent access to the right systems, and keeping it away from the rest, is enough. At Transcend, we don't think it is.

A credential decides which systems an agent can reach. It says nothing about what the agent should do once it's in. If an agent can read the payments repo with a developer's access, it can usually run a migration against the payments database too. Identity tools decide who an agent is, gateways decide what it can reach, and governance platforms document what it should do. None of them sits in the path of the action itself.

An instruction in a prompt ("don't delete customer data") doesn't close that gap, because the agent can ignore it or misread it. A policy checked on every call can't be talked around. That's what the plugin adds, and it moves the question from what an agent can reach to the one that matters: can my agent do this, for this purpose, right now?

Enable and control your agents

1. Install and sign in: A developer installs the Transcend Rails Agent Controls plugin from the Cursor Marketplace and signs in with browser OAuth. There's no API token to paste into a config file.
2. Register your first agent and policy: Transcend Rails registers a connected agent for the developer, and an administrator assigns the MCP servers it may use and the policies that govern them. The plugin is fail closed by default, so until an administrator grants something, the agent can't call any tool through Rails.
3. As the agent runs, every call is checked: Each MCP tool call routes through the Transcend Rails tool gateway and is evaluated before it reaches the upstream server. Every decision resolves to allow, deny or escalate, and an escalated action waits for a named reviewer before it proceeds.
4. Record every decision: The audit trail captures the developer, the agent, the tool, the decision and the policy version that produced it, so any action can be reconstructed later. That's becoming a buying requirement, as proof of agent governance starts to show up in enterprise vendor questionnaires.

What a policy looks like in practice

Say your team wants Grok Build agents helping with payments work without ever changing production data. The rule reads like a sentence:

Coding agents may read the payments repository and open pull requests. They may never run migrations against the production payments database.

When the agent tries to run that migration, Transcend Rails stops the call before it reaches the database and returns a decision like this:

{
"decision": "deny",
"reason_code": "PROD_DB_MIGRATION_DENIED",
"policy_version": "bundle-2026-10-05.1"
}

The reason code is stable and readable, so the developer sees why the call stopped and an auditor can trace it later. The policy version is what lets you reconstruct the exact rules in force at that moment.

If you'd rather have a person decide, change the rule to escalate. The action waits for a named reviewer, a timeout resolves to deny, and the agent can never approve its own request. Save escalation for the few actions that matter, like a change to a system of record. An agent that takes a million actions a day and generates ten thousand approval requests just turns your security team into a ticket queue.

The agent knows the rules too

The plugin also gives the agent instructions of its own. It treats a deny or an escalation as a normal outcome of governance and works within it. The agent won't retry hoping the policy changes, won't look for an ungoverned server that offers the same tool, and won't ask the developer for a different credential. If someone asks it to bypass governance, it declines and points them to the administrator.

Know what's covered

Transcend Rails is explicit about which enforcement tier each agent runs at, so nobody assumes coverage they don't have. It works at five enforcement points:

• Tool calls through the tool gateway
• Model calls through the inference gateway
• Outbound network requests through the network gateway
• Memory reads and writes in agent runtimes Transcend Rails provisions
• The decision API, which any agent on any stack can call before it acts

The Grok Build plugin works at the tool gateway. Every MCP tool call routed through Rails is governed, and the decision is applied whether or not the agent cooperates. Tools connected directly to the IDE, beside the gateway, aren't governed, so for an enterprise rollout, connect your MCP servers through Transcend Rails rather than alongside it.

The example above uses a Grok Build agent, but the mechanism doesn't depend on the agent type. Any Grok agent that routes its MCP tool calls through Transcend Rails, including an always-on Grok Bot agent, gets the same policy check and the same audit trail.

Get started

Start with one agent and one policy. The first policy is usually a single sentence, like "coding agents may read tickets and may not delete them." Simulate it against last week's traffic, put an owner's name on the agent, and let it do real work.

1. Install the Transcend Rails Agent Controls plugin from the Cursor Marketplace.
2. Book a technical session at transcend.io to see your Grok Build agents on Rails.